Hashi observed her brother grappling and competing in mixed martial arts and this inspired her to compete as well.
She joined the Wajitsu Keishukai, Tokyo Honbu gym and worked as an office worker during the day.
Hashi held the title of Smackgirl Grappling Queen in the promotion's Open-Weight division.
Hashi suffered her only defeat to date in MMA in 2005 when she was submitted by Hitomi Akano. She has since won eight straight fights and avenged the loss to Akano in their 2007 rematch.
Hashi was set to make her Strikeforce debut against undefeated Canadian Sarah Kaufman at Strikeforce Challengers 5 on November 20, 2009, but the fight was later removed from the card. It was first rescheduled for January 2010, but finally took place on February 26, 2010. The fight crowned the first Strikeforce Women's Bantamweight Champion. However, Hashi lost the fight by Unanimous Decision after five rounds.
|Professional record breakdown|
|16||12 wins||2 losses|
|Loss||Sarah Kaufman||Decision (Unanimous)||ShoMMA 6: Kaufman vs. Hashi||February 26, 2010||5||5:00||For Strikeforce Women's Bantamweight Championship.|
|Win||Chisa Yonezawa||Submission (Rear Naked Choke)||GCM - Valkyrie 2||April 25, 2009||2||1:43|
|Win||Amanda Buckner||Decision (Unanimous)||FFF 4: "Call of the Wild"||April 3, 2008||3||5:00|
|Win||Hitomi Akano||Decision (Unanimous)||Smackgirl - Queens' Hottest Summer||September 6, 2007||3||5:00|
|Win||Hee Jin Lee||Decision (Unanimous)||DEEP - CMA Festival 2||July 23, 2007||2||5:00|
|Win||Sybil Starr||Submission (Armbar)|| Smackgirl - Will The Queen Paint|
The Shinjuku Skies Red?
|March 11, 2007||1||2:47|
|Win||Miki Morifuji||Decision (Unanimous)||Smackgirl - Legend of Extreme Women||November 29, 2006||2||5:00|
|Win||Kinuka Sasaki||Submission (Rear Naked Choke)||Smackgirl - Top Girl Battle||June 30, 2006||1||2:31|
|Win||Kazuma Morohoshi||Decision (Unanimous)||Smackgirl - Advent of Goddess||February 15, 2006||2||5:00|
|Loss||Hitomi Akano||Submission (Armbar)||Smackgirl - Dynamic!!||August 17, 2005||1||1:19|
|Win||Yukari||Decision (Unanimous)||Smackgirl - The Next Cinderella 2005 Second Stage||July 10, 2005||2||5:00|
|Win||Yoko Hattori||Decision (Unanimous)||Smackgirl - The Next Cinderella 2005 First Stage||April 29, 2005||2||5:00|
|Win||Mika Harigai||Submission (Rear Naked Choke)|| Smackgirl - Yuuki Kondo|
|November 4, 2004||2||4:28|
|Win||Natsuko Kikukawa||Decision (Unanimous)||GCM - Cross Section 2||September 4, 2004||2||5:00|
- ↑ Unified Women's Mixed Martial Arts Rankings. MMARising.com. Retrieved on March 16, 2010.
- ↑ Unified Women's Rankings. FighterGirls.com. Retrieved on March 16, 2010.
- ↑ Top Female Fighters Star in So Cal. SHERDOG.com (2008-04-04). Retrieved on 2010-02-12.
- ↑ Hashi vs Kaufman Now Set For January 2010. MMARising.com. Retrieved on October 31, 2009.
- ↑ Strikeforce Books Sarah Kaufman vs Takayo Hashi Title Fight. MMAFighting.com. Retrieved on January 20, 2010.
- ↑ 6.0 6.1 Kaufman Confirms Hashi Title Fight In February. MMARising.com. Retrieved on January 21, 2010.
- ↑ Strikeforce Challengers 6 Live Results. MMARising.com. Retrieved on February 26, 2010.